4246 Ver la hoja de datos (PDF) - Peregrine Semiconductor Corp.
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4246 Datasheet PDF : 8 Pages
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Product Description
The PE4246 RF Switch is designed to cover a broad range of
applications from DC to 5000 MHz. It is non-reflective at both
RF1 and RF2 ports. This SPST switch integrates a single-pin
CMOS control interface, and provides low insertion loss while
operating with extremely low bias from a single +3-volt supply.
In a typical application, the high isolation PE4246 can replace
multiple RF switches of lesser isolation performance. It is
offered in a small 3x3 mm DFN package.
The PE4246 is manufactured on Peregrine’s UltraCMOS™
process, a patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
Figure 1. Functional Diagram
RF1
RF2
Product Specification
PE4246
Absorptive SPST UltraCMOS™
RF Switch: DC - 5000 MHz
Features
• Non-reflective 50-ohm RF switch
• 50-ohm (0.25 watt) terminations
• High isolation: 55 dB at 1000 MHz,
48 dB at 3000 MHz
• Low insertion loss: 0.8 dB at 1000 MHz,
0.9 dB at 3000 MHz
• High linearity: +33 dBm input 1dB
compression point
• CMOS/TTL single-pin control
• Single +3-volt supply operation
• Extremely low bias: 33 µA @ 3 V
• Available in a 6-lead DFN package
Figure 2. Package Type
6-lead DFN
50
CMOS
50
Control
Driver
CTRL
Table 1. Electrical Specifications @ +25 °C, VDD = 3 V (ZS = ZL = 50 Ω)
Parameter
Condition
Minimum
Typical
Maximum
Units
Operation Frequency1
DC
Operating Power
CTRL=1/CTRL=0
Insertion Loss
DC-2000 MHz
2000-3000 MHz
3000-4000 MHz
4000-5000 MHz
Isolation
DC-2000 MHz
49
2000-3000 MHz
45
3000-4000 MHz
43
4000-5000 MHz
40
Return Loss
DC-5000 MHz
11
Input 1 dB Compression3
DC-5000 MHz
30
Input IP3
DC-5000 MHz
50
Video Feedthrough2
Switching Time
5000
MHz
30/24
dBm
0.8
1.0
dB
0.9
1.1
dB
1.0
1.3
dB
1.3
1.8
dB
55
dB
48
dB
46
dB
44
dB
20
dB
33
dBm
dBm
15
mVpp
2
µs
Notes: 1. Device linearity will begin to degrade below 1 MHz.
2. The DC transient at the output of the switch when the control voltage is switched from Low to High or High to Low in a 50 Ω test set-up,
measured with 1ns risetime pulses and 500 MHz bandwidth.
3. Note Absolute Maximum ratings in Table 3.
Document No. 70-0090-05 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
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